Sporting his trademark undercut hairdo and wearing a reflective wide smile, Seattle hip hop artist Ben Haggerty, 31, better known as Macklemore, appeared at the Duwamish Longhouse Museum in West Seattle Wednesday. He was there to celebrate the achievements of the Duwamish River Cleanup Coalition’s (DRCC) “River For All” campaign, launched last June.

Macklemore gave a brief speech and said, “The pollution and injustice that has happened so long here, I understood it, but I didn’t really ‘get it’ until I came here this summer and met with you guys who’ve put in so much work to right this wrong and to honor the (river.) I think it is is our responsibility.